Users of Mixxx software can make their dance floor audience happy with the virtual DJ deck that the free project offers. But keeping a crowd happy on the dance floor means doing more than just playing loud music; you have to set up the right track on the deck at the right time, cross-fading it nicely with the previous track without interrupting the groove. To do this perfectly, you have to match the beats of the two tracks.

The annual developers’ conference FOSDEM will take place in Brussels on February 23 and 24, 2008. As a teaser, organizers of the open-source event have now placed interviews with some of the speakers online.